Home / 312,814,399.44-431,672,565.96-173,591,236.56

Finding the Fourth Proportional to 312,814,399.44, 431,672,565.96 and 173,591,236.56

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Solution

The fourth proportional to 312,814,399.44, 431,672,565.96 and 173,591,236.56 is: 239,549,632.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,814,399.44 : 431,672,565.96 = 173,591,236.56 : x
  2. Step 2: Convert to fraction form
    312,814,399.44/431,672,565.96 = 173,591,236.56/x
  3. Step 3: Cross multiply
    312,814,399.44x = 431,672,565.96 × 173,591,236.56
  4. Step 4: Simplify right side
    312,814,399.44x = 74,934,574,514,024,560
  5. Step 5: Solve for x
    x = 74,934,574,514,024,560/312,814,399.44
  6. Step 6: Final answer
    x = 239,549,632.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.